maas 1.5.4+bzr2294-0ubuntu1.1 (trusty-updates) + juju-core 1.18.4+dfsg-0ubuntu0.14.04.1 (trusty-updates) -> OK + juju-core 1.20.11-0ubuntu1~14.04.1~juju1 (ppa:juju/stable) -> Fail
maas 1.5.4+bzr2294- 0ubuntu1. 1 (trusty-updates) dfsg-0ubuntu0. 14.04.1 (trusty-updates) -> OK 0ubuntu1~ 14.04.1~ juju1 (ppa:juju/stable) -> Fail
+ juju-core 1.18.4+
+ juju-core 1.20.11-